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Types of lustre

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wastedshadows's version from 2016-01-22 18:50

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Question Answer
Strongly absorbs and reflects white light - e.g. silver, copper, pyriteMetallic
Semi-opaque oxides with relatively high refractive index - e.g. Hematite, megnetiteSubmetallic
Glassy, with a refractive index 1.5 - 1.9 - e.g. quartz, calcite, fluorite Vitreous
'Diamond-like' - Transparent or translucence minerals with an exceptionally high refractive index - e.g. diamond, rutileAdamantine
'Oily' 'greasy' ;'waxy' appearance -e.g. talc, gypsum, sulfurResinous
Soily brown - e.g. graphite, clay minerals Earthy
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